Ventilating system



March 27, 1928. 1,663,650

. C. FROESCH VENTILATING SYSTEM Filed Maich 24, 1927 2 Sheets-Sheet 1 INVENTORV W4, $7M

BY V March 27, 1928. 1,663,650

c. FROESCH VENTILATING' SYSTEM Filed March 24, 1927. 2 Sheets-Sheet 2 INVENTOR Patented Mar. 27, 1928. I

UNITED star-as CHARLES EROESCI-I, OE NEJV YORK, N. Y., ASS IGNOR TO INTERNATIONAL MOTOR COMPANY, OF NEW, YORK, N. Y.,

A CORPORATION 055' DELAWARE,

VENTILATING SYSTEM.

' Application 'fil'ed March 24, 1927. Serial no. 177,877. a

The present invention relates to ventilating systems for motor vehicles wherein the vehicle structure includes parts which generate heat and cause adjacent sections of the body to be heated therefrom. Due to features of design which must necessarily be embodied in the construction of "the vehicle, it frequently happens that certain sections receive an unusally large amount of heat which is notreadily dissipated and as a result discomfiture to thepas ventilate the space under the floor board and between the side frame members.

More specifically, the invention comprises the provision of vertical ducts from the floor to the top of the cowl so that air can circulate from the space under the fioor board directly to the outside, or, when the vehicle is in motion, from the outside, through the ducts and around the adjacent parts.

A further object is to provide a means for supplying clean air at all times to the motor generator set of a gas-electric drive, the air serving, additionally, as aventilating means for the space under the floor boards as described above.

40 Further and other objects will appear as the description proceeds and reference'willv now be had to the accompanying drawings for a more detailed description of the invention, wherein: I

Figure} is afront elevation, looking rearwardly from the engine, and showing the vertical air duct provided in the dash.

Figure 2 is a section taken on lines 22 of Figure 1 and looking in the direction of the arrows.

Figure 3 is a view similar to Figurel but showing a modified form of the invention.

Figure 4 is'a view, partly insection, showing the use of the present invention "to provide an effective means'for ventilating the motor generator unit of a gas-electric drive.

Figure 5 is a section taken on line 5 5"of Figure 4. i I Referring particularly to Figures 1 and 2, a indicates the cowl of the vehicle, mounted on side channels a and having an upright a" and a dash board Z) to receive the instruments. v. The floor is indicated at c'and between the floor and cowl the dash a? extends.

Carried by the dash andextending between the floor and cowl, is a duct 6 which communieates with the space under the floor and between the side channels as at e. In the form shown, the duct is offset angularly to avoid interfering with the usual mechanism carried by the dash, and at the upper portion of the duct, a hood f is provided to deflect the air into the duct when the vehicle is moving forward. The offset of the cowl duct additionally effects good ventilation on the exhaust pipe side of the chassis which 1 is always the hottest and radiates the greatest amount of heat. This hood is carried in a suitable aperture a? in the vehicle cowl.

It will'be seen from the above decription' that when the vehicleis moving forward, the

air will be deflected into the duct e and carried to the space below the floor and between the side frame members, thus vvetilating them quite effectively. Thelpocket formed by these members and the floor board will be relieved of the continuous supply of heated air from the engine or driving units and better operation results. When the vehicle is starting and the engine is idling the thermal effect between the relatively hot and cool gases causes the heated air to rise through the duct and thusv ventilate the above space under such conditions.

- In Figure 3, the duct 6 is provided with two branches 6 and 6 each having separate hoods f and f respectively, and in this con 'struction the ventilating effect is'more pronounced.

Referring more particularly to Figures 4 and 5, 9 indicates a motor generator set of a gas-electric drive unit having air inlet vents g at either end thereof and central exhaust vents g The duct e is extended downwardly and in proximity to the drive unit described above. The floor is raised as at 0 to accommodate the unit and provide greater clearance and at either ends of the unit, suitable caps are provided to enclose the air ducts g. In order to conduct the ventilating medium to the unit, the floor may be utilized as one wall of an enclosure h includ ing the upper portion of the unit and having suitable side walls 71:. The duct e communicates with this enclosure and-the end caps g introduce the medium into the drive unit. The end caps may be secured under the bolts g which secure the end plates to the housings and any suitable means, such as riveting may be used to connect the vari ous sections of air ducts together.

a The abovc'structure insures a constant supply of clean air to the unit and avoids the accumulation of water, dirt and mud in the gas-electric drive unit, as found when it receives air from beneath the body. It also prevents the air which has been heated by refraction from the pavement from being used for ventilating the unit.

Obviously the invention may be embodied the unit and means to cause the duct to carry ventilating air from the exterior of the vehicle and above the frame members to the enclosure, whereby the ventilation of the unit by means of such air is effected.

2. In a vehicle, side frame members and flooring carried therewith, a driving unit between the members and below the flooring;

a duct, means cooperating with the flooring for forming enclosures for portions of the unit, means to cause the duct to carry ven-' tilating air from the exterior of the vehicle and above the frame members to the enclosures and means to deflect air into the duct.

This specification signed this 19th day of -March A. D. 1927.

CHARLES FROESCH.

to V 

